Molding-machine for forming bricks and the like from plastic material.



MOLDING M'AGHI-NB FO- FORM G'. BROWN. ING BRIoKs AND THB LIKL PROM PLASTIC MATERIAL.

VAIILIOATIOI FILED JAN. 11, 1906.

PATBNTLD 00T. 23,1906.

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No. 833.952. PATBNTBDTOGT. 2s, 1906.

G. BROWN. f

MOLDING MACHINE 'POR' FORMING 'BRIGKSAND THB LIKE FROM PLASTIG MATERIAAL.

. APPLICATION FILE-1lJAI.1.1.,`190 6.,l w

' $11 f a@ @r T TIL TTT, d242 ,'jl, "Wi y.

/Za I ZZEPZZZ' PAT-ENTED 001, 2s, 1906.

G. BROWN. y l1111011111111 111.1011111?. PQR `PoRmuNGfBRIGKSAND THB LIKETROM PLASTIC MATERIAL. APPLIoATIoI :Hmm 1.111,11, 1906.

' To all whom) it may concern: f -q Beit known that .UNITED A STATES PATENT OEEIOE.

' GEORGE BROWN,

OF NiLES, MICHIGAN. ASSIGNORTO SOUTH BEND MACHINE MFG. CO., OF SOUTH BEND, INDIANA, A lCORPORATION OF IN DIANAt No. saaes.

I, GEORGE BROWN, a citizen of the United States, and a resident of the chin y .y the fouowin xov ' companying drawings, and to the vcity of Niles, Stte of. Michigan, have invented certain new an es for Forming Bricks and the Like from PlasticMaterial and I do hereby declare that is a full, clear, and exact descripreference being had 'to the ac' figures vof tion thereo l reference marked thereon, which form part of y. this specification.

This' lnvention'relates to improvements in machines for molding bricks, blocks, and the like from plastic concrete, andthe like; and the invention consists in'the matters hereinafter set forth, and

rovide an exceedingly simple,

more (particularly pointed` out in the .appende claims.

Among the objectsof my invention is to strong, and urable machine for the 'purpose set forth which'may be economically constructed and operated ata largecapacitywith a minimum ,ex enditure of labor. he invention has for its ob'ects other im- 1[rovements in machines of t e class specied, which will hereinafter be described, and fully pointed out in the claims appended hereto.

The molding-machine herein shown as emodymg my, invention is generally like the lmachine illustrated in my pending applica- L Serial No.'259`,976, iledon the tion for Letters Patent of the United tates, 11th day of l, May, 1905, andl embraces a 'suitable mold having movable or swinging walls whereby access may be had to the mold-chamber for mold-s paces in which seratelymolded;

I' i ation ofthe machine and to the purpose of introducing thereinto the las- .tic material land for removing the mo ded forms after the forms erating in connection with partition-plates which are movable into and out of the moldchamber and which coact with the walls of the mold and the mold-bed to constitute the the or blocks are y presentinvention is characterized by certain novel features. of construction designed'to improve vthe'construction and operfacilitate the 'manufacture of the molded in the county o f Bel'rien' and useful `Improvements irn Molding-Mamaterialsuch as cement,

have'set, said parts opaticles, both may - molded thewallis manipulated. The

MOLDING-MACl-IINE FOR FORM|NG BRICKS AND THE LIKl-I FROM PLASTIC MATERIAL.

Patentes oct. 23,1906.

withrespectto facility of operation of the machineland the character of the articles formed.

Inv the drawings, Figure 1 is an end View of a molding-machine embodying m invention, showing the cover swung upwar ly. Fig. 2 is a transverse vertical sectionthereof, show 6o ngitudinal vertical section ig. 4 is a plan' view of the partsl broken away, showing the cover elevated. Fig. 5 is an\ end view of a modified form of,the machine. Fig. 6 is a top lan vie'w partially broken away, offthe orm broken away. machine with mg the cover'in its closed position. Fig. 3 is a o F shown 1n Flg. 5.

First referring to Figs. 1 to 4 o the draw- 10 designates the frame ofthe machine, be made of any suitable form and sup orts at one side thereof a mold, consisting of albottom wall or plate 11, sirwalls 12 an 13, vand a top wall 14. The mold-bed, upon which the molded articles are formed, con- 7 5- sists, preferably, of a removable pallet-board 15, which is supported horizonta ly upon the botom plate '11 between the side walls 12 The removability of the pallet-board enables the molded forms to be rnmoved from the mold on the same support Aou which `they are formed, so that the said molded forms or articles ma be dried ,without removing them from tile board. In' practice a number of said pallet-boards are provided with one machine, so that the operation of molding may be carried on practically continuously. The side wall 1,12 is shown as fixed, it being made integral with said frame.' The opposite side wall 13 is mounted so as to be capable of being lowered below the level of the pallet 15, wherebythe pallet-board and the articles thereon may be removed laterally from the bottom late of the mold without the `necessity of l` ting the'same an a preciable distance above` thel bottom p ate, thus facilitating the removal of the molded forms from the mold. This is conveniently effected by hinging said wall at its lower margin, as upon pintle-pins 16, to the at it may swing downwardly and outwardly. The swinging side wall 13 is strengthened .by a flange 13, which ma conveniently constitute a ,handle by which :o5

top or cover ICO 14 is hinged by lugs 17 to a transverse horizontal pintle-rod 18, mounted in lugs 19, rising from the frame. Said cover rests, when thrown upwardlly, against standards 20, that extend upward y from the machine-frame, The cover is provided with a handle 21, by which it may be raised and lowered. The swin ing side wall 13 is held in its upright or close position by means of swinging 'lock bars or inks 22, that are hinged at their rear ends to the reduced outer ends of the pintlerod 18 and are notched neartheir free ends to enga lookin -lu 23, fixed to the front wall. he said ockmg links or bars'22 `are swung upwardly and rearwardly to release the swinging side wall, and .when in their rearmost positions are su ported by pins or lugs 24 which extend iaterally from the standards 20. Y i

25 25 designate the partition-plates referred to, which are horizontal and are disposed vertically edgewise. 'They slide across the mold-bed or pallet in the mold and form, together with the walls of the mold and the lmold-bed, when in their forward positions,

'upwardly-opening mold-spaces to recelve the P 28 28, one at each end of the machine.

asticmaterialwhich is given form in said spaces. Said partition-plates vslide horizontally through slots 26 in the fixed side wall 12 of the mold, across the lmold-bed or pallet, and toward and from the movable side wall 13. `When the plates have been` moved inwardly, the mold-spaces formed between the same are filled with the plastic material which is tamped therein, and the top wall or cover is thereafter closed upon 4the upper surfaces of the molded forms in said mold-s aces to smooth the same. After the `molde forms are set the partitionplates are withdrawn 'from the mold, and thereafter the top and side walls are swung to their o en positions, and the pallet, with the set mo vded forms thereon, is removed laterally from the mold. The said partitionplates are supported at their. rear ends inv 'de-slots 27, alined with the slots ofthe ed wall 12 and formed in a horizontal bar 27, that extends from end to end of the machine. Said bar 27a is herein shown as made integral with two short transverse members Said transverse members 28 are provided at their inner or forward ends with flanges'29, which are herein shown as Vbolted to the stationary wall 12 of the mold, and the bar y 27 is itself bolted to a horizontal'bar 30,

rising from the frame 10.

Any suitable means may be employed for sliding said partition-plates inwardly across the mold-bed to form the mold-spaces reierred to and outwardly to clear the bed. The

' construction shown in Figs. 1 to 6, inclusive,

embraces a rack-and-pinion mechanism and 1s made as follows: 32 designates a rotary shaft extending through and having rotative 'bearin in apertures in said partition-plates 25 an carrled thereby. Said shaft is' provided at its ends with pinions 33, that enga e with'- the teeth of downwardly-facing rac 34, formed on the lower margins 0f the transverse frame members 28 at the ends of the machine. Said shaft 32 may be operated from either end of the machine by means of suitable hand levers or cranks 35, fixed to the shaft outside of said pinions 33;

It is desirable in some instances to form the brick or blocks with one or more special yfinished faces. This is effected by means 0f suitable facing-plates 36, which may be attached to one or more of the movable wa` of the mold and are pressed against the pla tic material to im art a finish thereto, de ending upon the c aracter of the facing-p ates.

In the present construction I have illustrated one set of said facing-.plates ap lied to the under side of the cover or to signed to finish the top e ge faces of the brick or blocks, as best shown in Figs. 3 and 4.. Said plates, as herein shown, are separated by s aces 37 and fit into the opensides of the mo d-spaces formed between the partition-plates, and the upper margins of the partition-plates slidingly fit within the spaces 37, whereby the lates are held from lateral displacement, Iiiie movable side wall may -likewise be provided with facing-plates to finish the end faces of the brick or blocks. Said facing lor finishing' plates are made smooth when it is desired to mold the brick' or like articles with smooth faces and are made rough and of any desired surface conwa l 14 and de- IOO figuration when it is desired to produce brick or like articles with a roughened surface. They may be detachably fixed to the walls carrying the same, as by means of bolts 38, or the movable walls themselves may be detachably mounted onthe mold, whereby one set of plates may be Vremoved and another substituted therefor. In some instances the pecially-finished face of the brick may be vp'rmed by a special facing-coat containlng a 'greater pro ortion of cement than the body Uf the bric Such facin coat or material ma -be made of any color esired.

he removable pallet-board 15, which in this instance constitutes the mold-bed, is preferably made of a light material in order to render the same sufficiently light to be convenienti portable, wood being a suitable material. aid pallet-board may also be provided on its up er surface' with facingplates 39 as best siown in Fig. 4, so as to suitably finish the bottom edge faces of the brick or like article being formed and at the same time revent the pallet-board from warpinv. The ower margins of the partitionplates slide in the s aces between said/plates 39, thus lending ad it-ional insuranceagainst lateral displacement of the partition-plates. The advance ends of the partition-plats are in the inner face of the movable side wall to hold the ends of the plates from lateral displacement.

The construction shown in Figs'. 5 and 6 is l essentially similar tothe `construction shown in the previous figures with the exception that two molds 45 46 are located side by side on the su porting-frame 10 and a single set of plates or twoxsets of plates operated by an actuatin device common to both) coperate with sait? molds to partition the mold-chambers' into the roper size mold-spaces, `As herein shown, t e two sets of part1tion-plates`- are formed b the Opposite ends of a single set of aralle horizontal plates 47, disposed vertica ly edgewis'e and'extendin across the space between the molds; The a jacent ends of the plates of said set 'constitute the parti-- tion-plates for one mold, and the other ends thereof constitute the partition-plates for the other mold.l The plates are so operated that when one set is inserted into its mold, across the mold-bed thereof, the other setvis withdrawn from its mold to clear the associated mold-bed, and vice versa. As before stated,

a single actuating device o erates both sets lof partition-plates, and in t e instance shown such actuating device consists of the rack-andpinion mechanism hereinbefore described, the said parts being designated in Figs. 5 and `6 by the same reference characters as in the y construction previously described. In this 'way the molds may be charged and dischargledin alternation, thus greatlyincreasing t e capacity of the machine without correspondin ly increasin its cost or the space occupied y the mac ine. Two swinging covers ortopwalls 14 are provided, and two stop or sup orting ins 24 are provided on the standards 20 for iolding in their rearmost positions the locking bars or links 22. In other respects the construction andioperation ofthe last-described form of machlne is like that of the machine previously described.

Changes ma be made in the-structural'de- ,tails described7 without departing from the v s irit ofthe invention, and such described etails are not intended as limitations, except in the claims, in which the details are specified. v

I claim as my invention- 1. A molding-machine comprising a mold embracing a mold-bed, side walls, one of f which is slotted and the other of which is movably mounted to be lowered below the mold-bed, partition-plates sliding through the slots of the slotted wall, across the bed and toward and froml the movable wall, and a cover or to wall hinged to swing upwardly away from tilie movable wall.

2.y A molding-machine fcomprising'a mold embracing a mold-bed, side walls, one of which is slotted and the.other of which is movably mounted tov be lowered' belowA the mold-bed, partition-plates sliding through the slots of the slotted wall, across the bed and toward and from the movable wall, a`A

cover or top wall hinged to swin upwardly away from themova le wall, and a support a ainst which the top wall orcover rests w en in its open position.

3. A moldm -machine comprisin a mold havin a mold-bed, side walls, one o which is mova ly mounted so as to be lowered below vthe level of thel mold-bed, and the other of which is slotted, and artition-platesslidable through the slots of t e latter wall, across the bed and toward' and from the movable wall,

and ratchet-pinion mechanism for operating which is slotted, and artition-plat-es slidable through the slots of t e latter wall, across the bed and toward and from the movable wall, a shaft movable with said partition-plates and provided with a pinion, and a :fixed rack engaged by said pinion and coactin therewith to move the partition-'plates en wise when the shaft is rotated. 5. A molding machine comprising two molds, two sets of partition-plates movable into and out of the molds, and a single actuating device for operating both sets ofvpartition-plates.

6. A molding machine comprising two molds located slde byside, two sets of sliding partition-plates movable into and out of the4 `molds, the partition-plates of said two sets roe for operating both sets of partition-plates,

constructed to withdraw one set of partitionplates from its mold while inserting the other set of. lates in its mold.

8. X molding-machine comprising. a mold embracing a mold-bed, side walls, one of -which is 'slotted and the other of which is mounted so as to-be lowered below the level of the mold-bed, partition-plates sliding through the slots of the slotted wall, across izo the mold-bed and toward and from the mov able wall, and lugs on the advance ends of said plates adapted to'entcr registering sock- 4cts in said movable wall.

`9. A molding-machine comprising a mold .embracing a. mold-bed, sidewalls, one of which is slotted and the other of which vis mounted to be lowered below the level of the mold-bed, a hinged top wall, partition-plates sliding through the slots of the :flutted wall,

www

across the bed @nd towardand from the movlable Wall, `and finishing-plates attached to uary, A. D. 1906. l 4the under fa'oe of the top Wall and separated i to enter the mold-spaces formed between the GEORGE BROWN' 5 partition-plates. 4, Witnesses:

- In testimony that I claim the foregoing as; CHARLES M. KRIEGHBAUM,

my invention 4I affix my signature, in the.7 l F. HOWARD.

puresence of two vwitnesses, this 1st day of Jan- 

